YTools (version 2.1.8, 2006-01-22)
is a set of enhancements to Lisp, including improved macros for
iteration, formatted I/O, file management, and even backquoting!
Documentation includes detailed manual (PDF) with over 50 pages. YTools version 2.1 includes a complete rewrite of the YTools File Manager based on the concept of "chunk" described in McDermott 2005.